EP 2027481 A2 20090225 - PASSIVE MR VISUALISATION OF INTERVENTIONAL INSTRUMENTS
Title (en)
PASSIVE MR VISUALISATION OF INTERVENTIONAL INSTRUMENTS
Title (de)
PASSIVE MR-VISUALISIERUNG VON INTERVENTIONSINSTRUMENTEN
Title (fr)
VISUALISATION PASSIVE PAR RÉSONANCE MAGNÉTIQUE NUCLÉAIRE DES INSTRUMENTS D`INTERVENTION
Publication
Application
Priority
- IB 2007051376 W 20070417
- EP 06112868 A 20060421
- EP 06123412 A 20061103
- EP 07735521 A 20070417
Abstract (en)
[origin: WO2007122553A2] The invention relates to a device for magnetic resonance imaging of a body (7), wherein the device (1) is arranged to a) generate a series of MR echo signals (20) by subjecting at least a portion of the body (7) to an MR imaging sequence comprising RF pulses and switched magnetic field gradients, b) acquire the MR echo signals for reconstructing an MR image (21) therefrom, c) calculate a susceptibility gradient map (22) from the MR echo signals or from the MR image (21), the susceptibility gradient map (22) indicating local susceptibility induced magnetic field gradients, d) determine the position of an interventional instrument (16) having paramagnetic or ferromagnetic properties from the susceptibility gradient map (22).
IPC 8 full level
G01R 33/28 (2006.01)
CPC (source: EP US)
G01R 33/286 (2013.01 - EP US)
Citation (search report)
See references of WO 2007122553A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2007122553 A2 20071101; WO 2007122553 A3 20080124; EP 2027481 A2 20090225; JP 2009534084 A 20090924; US 2009080750 A1 20090326
DOCDB simple family (application)
IB 2007051376 W 20070417; EP 07735521 A 20070417; JP 2009506018 A 20070417; US 29764907 A 20070417